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Finding the Fourth Proportional to 63,776.88, 88,036.16 and 54,788.32

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Solution

The fourth proportional to 63,776.88, 88,036.16 and 54,788.32 is: 75,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,776.88 : 88,036.16 = 54,788.32 : x
  2. Step 2: Convert to fraction form
    63,776.88/88,036.16 = 54,788.32/x
  3. Step 3: Cross multiply
    63,776.88x = 88,036.16 × 54,788.32
  4. Step 4: Simplify right side
    63,776.88x = 4,823,353,305.65
  5. Step 5: Solve for x
    x = 4,823,353,305.65/63,776.88
  6. Step 6: Final answer
    x = 75,628.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.